html {
  margin: 0;
}

body button {
  color: pink;
  -webkit-border-radius: 50%;
  -moz-border-radius: 50%;
  border-radius: 50%;
  border: 2px solid red;
}

body a {
  -webkit-border-radius: 50%;
  -moz-border-radius: 50%;
  border-radius: 50%;
}

body ul {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border: 2px dotted red;
}

body ul li {
  list-style: none;
}

body div, body span {
  border: 1px solid red;
  background-color: red;
}

body span {
  font-size: 20px;
  background-color: transparent;
}
